diff --git a/Gemfile b/Gemfile
index 7fbce5e219..50508783ba 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,9 +3,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :development do
-  gem "bundler"
   gem "rake"
   gem "rake-compiler"
   gem "rdoc"
-  gem "psych", "< 5.0"  # psych 5.0+ requires Ruby 2.7+
 end